We have located links that may give you full text access.
Metformin and caffeic acid regulate metabolic reprogramming in human cervical carcinoma SiHa/HTB-35 cells and augment anticancer activity of Cisplatin via cell cycle regulation.
Food and Chemical Toxicology 2017 August
Metformin shows benefits in anticancer prevention in humans. In this study, normal human fibroblasts (FB) and metastatic cervical cancer cells (SiHa) were exposed to 10 mM Metformin (Met), 100 μM Caffeic Acid (trans-3,4-dihydroxycinnamic acid, CA) or combination of the compounds. Both drugs were selectively toxic towards cancer cells, but neither Met nor CA treatment suppressed growth of normal cells. Met and CA regulated metabolic reprogramming in SiHa tumor cells through different mechanisms: Met suppressed regulatory enzymes Glurtaminase (GLS) and Malic Enzyme 1 (ME1) and enhanced pyruvate oxidation via tricarboxylic acids (TCA) cycle, while CA acted as glycolytic inhibitor. Met/CA treatment impaired expression of Sterol Regulatory Element-Binding Protein 1 (SREBP1c) which resulted in alleviation of de novo synthesis of unsaturated fatty acid. The toxic action of CisPt was supported by Met and CA not only in tumor cells, but also during co-culture of SiHa GFP+ cells with fibroblasts. Furthermore, Met and CA augmented Cisplatin (CisPt) action against quiescent tumor cells involving reprogramming of cell cycle. Our findings provide new insights into specific targeting of mitochondrial metabolism in neoplastic cells and into designing new cisplatin-based selective strategies for treating cervical cancer in humans with regard to the role of tumor microenvironment.
Full text links
Related Resources
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app